Elgin DuraPower Factory Mainspring for 6¾ ligne grade 944 - Alloy

Elgin Factory DuraPower Mainspring for 6¾ ligne grade 944 movements, alloy, new in sealed envelope. The grade 944 is an ETA 2410 based movement and thus this mainspring may also work for a handful of other ETA calibers. I likely have several of these so the actual one you receive may differ slightly from the images. I specialize is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item